Revert "Split asm and c flags and srcs in bp2build output"

Revert submission 1714835-roboleaf-asm-c

Reason for revert: TestCcLibraryStaticProductVariableSelects fails everywhere
Reverted Changes:
I28cf7437e:Split asm and c flags and srcs in bp2build output
I2b47e6b55:Split libraries by language in cc_library_static

Change-Id: I85d39a462f0a5b3f5ff3d685906813fab9f01358
diff --git a/cc/object.go b/cc/object.go
index cd71161..704cb69 100644
--- a/cc/object.go
+++ b/cc/object.go
@@ -185,14 +185,8 @@
 	}
 	// TODO(b/183595872) warn/error if we're not handling product variables
 
-	// Don't split cc_object srcs across languages. Doing so would add complexity,
-	// and this isn't typically done for cc_object.
-	srcs := compilerAttrs.srcs
-	srcs.Append(compilerAttrs.cSrcs)
-	srcs.Append(compilerAttrs.asSrcs)
-
 	attrs := &bazelObjectAttributes{
-		Srcs:    srcs,
+		Srcs:    compilerAttrs.srcs,
 		Deps:    deps,
 		Copts:   compilerAttrs.copts,
 		Asflags: asFlags,